The vinyl chamber that holds the water. Options range from "Free Flow" (full wave action) to "Waveless" (contains fiber layers to stop motion).
While no specific viral "guide" file by this exact name is currently trending in software repositories, a softside waterbed is a modern sleep system designed to look like a traditional mattress but using water-filled bladders for support. Soft Waterbed.7z
A padded or quilted "zip-on" top that makes the waterbed look and feel like a standard mattress. The vinyl chamber that holds the water